Add ACCOUNT_THUMBPRINT to update account

Ref: #590

acme.sh

@@ -3881,6 +3881,9 @@ updateaccount() {
   if [ "$code" = '200' ]; then
     echo "$response" >"$ACCOUNT_JSON_PATH"
     _info "Account update success for $_accUri."
+
+    ACCOUNT_THUMBPRINT="$(__calc_account_thumbprint)"
+    _info "ACCOUNT_THUMBPRINT" "$ACCOUNT_THUMBPRINT"
   else
     _info "An error occurred and the account was not updated."
     return 1